Doorstop



y 1953 e. ClVlTELLl 2,638,620

' DOORSTOP Filed April 15. 1949 2 Sheets-Sheet 2 INVENTOR Genna'ro Cizu'relli.

ATTORNEY Patented May 19, 1953 UNITED STATES PATENT OFFICE DORSTOP nnu civitqlli, Hamden 1 Applioation April 1 3, 1949, Serial No. 87,320

6Claims'; 1

This invention relates to-d'oor stops and more particularly to a door stop which is. adapted. to. be detachably associated with any one of the door hinges. so as to be conveniently disposed away from the floor and free from interference by articles placed adjacent to the door or door frame.

One: object of this. invention is to provide. an improved form of door? stop having in its structure means whereby it may be secured to the door hinge, and be pivoted by the hingepin. upon which: the door swings.

Another object: is to provide in a door stop of the above-nature: door and door frame engaging. bumpers. which. are ad-iustably mounted on: a holding frame and whereby the amount the door is opened may be controlled.

A further object of this invention is toprovide an improved-door stop which will be relatively' inexpensive to manufacture, simple in con-.- struction, being- .of few parts, pleasing in appearance, compact, and very emcientand -durable in use.

Withthese and other objects in View which will appear as the description proceeds, there havebecn illustrated in the accompanying draw-- ings several forms in which the features and prin'cipies of this invention may be conven-iently and practically embodied.

In the drawings:

Figure 1 is a front view of a door stop em-- hodying' the features and principles of this invention shown applied toa door hinge and inoperable association with: a door and a door frame;

Figure 2 is a top plan View of the door" stop and associated parts shown in- Figure l, thedoor being in closed position;

Figure 3 is a view similar to Figure 2' but with the door opened to the maximum amount a1 lowed by the door stop, the door hinge" pin be ing sectioned along line 3 of Figure 1;

Figure 4 is a front View of a modified form of door stop shown applied toa door hinge and in operable associationwith a door and a door frame;

Figure 5 is a top planview of the door step shown in Figure 4: with the doorshown in closed position in full lines, showing thepositi'on of thedoor stop when the door is open in dotted lines, and the door hinge pin beingsectioned on line 5 of Figure 4;

Figure 6' is a top plan- View of a formsimilar to the one shown in- Figures-A: and5;

Figure-T is a front View of a modified formof 2. door stop embodying the features of this invention;

Figure 8 is a top plan view of the door stop shown in Figure '7, the door hinge pin beingsecti'oned'online 8 of Figure '7; and

Figures 9 and: 10 are views similar to- Figure 3 of the: door step shown in Figure 7 but with parts thereof shown in other operative positions, or entirely omitted.

Referring now to the drawings wherein like reference numerals designate like partsthroughout the several views, the reference numeral H denotes a door, adaptedby means of hinges 1'2, only one being shown, to swing into closed and open positions in a door casing I 3; The hinge i2 is ofstandard form having a leaf I 3 attached to the door I and a leaf I5 attached to the door casing 13; the leaves It and I5 being detachably secured together for relative swinging movement by a hinge pin Hi; The hinge pin it, in this in stance is removable from the top of the hinge, and has a spherical knob H upon its upper end.

The door stop-shown in Figures 1, 2' and 3 comprises a framemember I8 having an arm 19', the outer end 2| of which is circular in shape and has a hole 22' therein through which the hinge" pin i6 may pass, the fit between the pinand' the" hole preferably being a light press fit. Theother end of the arm I9 is integrally connetted to a crossbar 23 having a circular lug 2'6 on one of its ends and a circular lug 25 on the other of its ends; It wiil be noted that the length of the'bar' 23 at one side of the arm I 9 is greater than; that at the other side. A threaded hole 2% is formed through each lug 24' and 25', and the axes of the threaded holes are substantially one hundred twenty degrees apart.

A threaded stud 2*? is' screwed through each of the lugs 2'23 and 25', and a lock nut 28 is pro vided screwed onto each of. the studs to lock each of the studs in" any of its adjusted positions. in the lug. Bumpers Z8 and 3!, of" rubber; or likev material, are fastened to the outer ends of each stud 2'7"; the bumper 25' being adjacent the lug 1 2% and thebumper 31 being adjacent the lug 25.

When in position on a hinge pin it, the door:

step; above described, is disposed between the door H; and the portion 32 of the door framing toward which the door it will swing when it is 7 opened. When the door it, while swinging open,

lugs 24 and/or 25 the opening amount of the door I I may be controlled from the maximum of approximately 120 degrees to a minimum determined by the length of the studs 21.

When the studs are set to permit maximum opening of the door H, that is to approximately 120 degrees, the door engageable face 33 of the bumper 29 lies in a plane which is spaced outwardly from the axis of the hinge pin 18 an amount substantially equal to the amount the axis of the hinge pin it is spaced from the plane of the face 34 of the door l l, engaged by the face 33 of the bumper 29, whereby the axis of the stud 21, on which the bumper 29 is secured, will be substantially at right angles to the face 34 of the door I I, thus obviating any off-center strain being imposed on the stud. The frame engageable face 35 of the bumper 3! lies in a plane which is spaced outwardly from the axis of the hinge pin IS an amount substantially equal to the amount the axis of the hinge pin it is spaced from the plane of the face 36 of the frame portion 32, engaged by the face of the bumper 3!, whereby the axis of the stud 2?, on which the bumper 3! is secured. will be substantially at right angles to the face 35 of the frame portion 32, thus obviating any off-center strain being imposed on the stud.

In the form shown in Figures 4 and an arm 3| is provided with a circular end 42. A hole 33 is provided in the end 132 to permit the hinge pin Hi to pass therethrough and detachably secure the arm ll to the door hinge i2 as disclosed above in respect to the above described form. Studs 44 and 45 extend outwardly, one from each side of the other end 56 of the arm 4 I. The studs 44 and 45 are in alignment. Bumpers ti and A3, of rubber, or like material, are fastened on the outer ends of the studs 44 and 45 respectively. The face 39 of the bumper 41, which engages the door ll, when the door is opened the maximum amount, lies in a plane which is spaced outwardly from the axis of the hinge pin 1 d an amount substantially equal to the amount the axis of the pin it is spaced from the plane of the face 5! of the door I l, engaged by the face 49 of the bumper Al, whereby the axis of the stud 44, on which the bumper 41 is secured, will be substantially at right angles to the face 5! of the door lLthus obviating any oficenter strain being imposed on the stud. The face 52 of the bumper 48, which engages the frame portion 32, lies in a plane which is spaced outwardly from the axis of the hinge pin 16 an amount substantially equal to the amount the axis of the hinge pin [6 is spaced from the plane of the face 53 of the frame portion 32, engaged by the bumper 48 when the,

door I I is opened, the maximum amount, whereby the axis of the stud 45, on which the bumper 48 is secured, will be substantially at right angles to the face 53 of the frame portion 32, thus ob viating any off-center strain being imposed on the stud.

In the form shown in Figure 6 provision is made whereby. the studs 55 and 58 of a door stop, similar to the one shown in Figures 4 and 5, may be adjustable. The hole 51 in the outer end 58 of the arm ll is threaded and the stud 55 is screwed through this hole 51, being locked in place by a lock nut 59. The stud 55 is internally threaded to receive the threaded stud 56. A look nut 6| locks the stud 55 to the end of the stud 55.

In the form shown in Figures 7 to inclusive an arm 65 has a hole 66 in one end 6'! to receive the hinge pin l6 and pivot thereon. A vertically disposed bumper 68 having a depending threaded stud 69 is secured to the other end 10 of the arm 65 by a nut H, screwed onto the stud 69. A second arm 12 is pivoted, by a bolt 13, to the arm 55, adjacent its end 61, and on its outer end 14, the arm 12, has a vertically disposed bumper 15 secured thereto by a nut 16 screwed onto a threaded stud Tl depending from the bumper l5.

Identically formed links 18 and 19 having lengthwise spaced apart holes 8| provided therein, overlap and are joined together by a bolt 82 passing through a hole in each link. The outer end of link 18 is pivotally secured upon the stud 69 at the end I0 of the arm 65 by the nut H, and the outer end of link 19 is pivotally secured upon the stud '11 at the end 14 of the arm 72 by the nut 15. As shown in Figure 8 the links 18 and 19 are secured together at their overlapping ends so that maximum spread of the arms 65 and 12 are obtained to hold the bumpers 68 and Z5 sufficie'ntly apart to allow the door II to open approximately degrees. To increase the amount the door II will open, the links l8 and 19 may be overlapped a greater amount, see Figure 9, by passing the bolt 82 through other holes Bl in the links.

Maximum opening movement of the door I l is obtained by detaching the links 78 and 79, and the arm F2 from the arm 65 whereby only the bumper G8 is in use. Where only an approximate maximum opening of the door is desired the links l8 and 19 may be removed whereby the bumpers 68 and 15 will abut as shown in Figure 10. If desired, the links 18 and 19 may be kept attached and swung into the position shown in dotted lines in Figure 10.

From the above description it will be understood that the inclusion of the features and principles of this invention in the structure of a door stop provides a door stop which is especially simple in structure, inexpensive to manufacture, and is particularly efficient and durable in use.

While there has been shown and described herein several forms in which the features and principles of this invention may be conveniently and practically embodied it is to be understood that the same may be embodied in other specific forms without departing from the spirit and essential attributes thereof, and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, reference being had to the claims rather than to the foregoing description to indicate the scope of the invention.

Having thus fully disclosed the invention, what is claimed as new and for which it is desired to secure Letters Patent, is:

1. A door stop comprising an arm having a hole in one end to receive the hinge pin of a door, a cross-bar extending across the other end of said arm with its lengthwise axis at an acute angle to the lengthwise axis of said arm studs extending one from each end of said cross-bar, and a bumper on the outer end of each stud, the plane of the outer surface of one of said bumpers being offset from the center of the hinge pin hole in said arm more than the plane of the outer face of the other bumper.

2. A door stop comprising an arm having a hinge pin receiving hole in one end thereof, a cross-bar extending across the other end of said arm, a stud extending from each end of said cross-bar, and a bumper on the outer end of each stud, the plane of the outer surface of one of said bumpers being offset from the center of the hinge pin hole in said arm more than the plane of the outer face of the other bumper.

3. A door stop comprising an arm having a hinge pin receiving hole in one end thereof, a cross-bar extending across the other end of said arm with its lengthwise axis at an acute angle to the lengthwise axis of said arm, a lug on each end of said cross-bar, and a bumper attached to each lug.

4. A door stop comprising an arm having a hinge pin receiving hole in one end thereof, a cross-bar extending across the other end of said arm with its lengthwise axis at an acute angle to the lengthwise axis of said arm, a lug on each end of said cross-bar, and a bumper attached to each lug, one of said bumpers having a threaded shank, and one of said lugs having a threaded hole therethrough to receive the threaded shank of said bumper for adjusting the amount said bumper extends from said lug.

5. A door stop comprising an arm having a hinge pin receiving hole in one end thereof, a cross-bar extending across the other end of said arm with its lengthwise axis at an acute angle to the lengthwise axis of said arm, the length of said cross-bar on one side of said arm being greater than that on the other side thereof, a lug on each end of said cross-bar, and a bumper attached to each lug.

6. A door stop comprising an arm having a hinge pin receiving hole in one end thereof, a cross-bar extending across the other end of said arm with its lengthwise axis at an acute angle to the lengthwise axis of said arm, the length of said cross-bar on one side of said arm being greater than that on the other side thereof, a lug on each end of said cross-bar, and a bumper attached to each lug, one of said bumpers having a threaded shank, and one of said lugs having a threaded hole therethrough to receive the threaded shank of said bumper for adjusting the amount said bumper extends from said lug.

GENNARO CIVITELLI.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 377,852 Giesy Feb. 14, 1888 2,055,743 Falcone Sept. 29, 1936 2,231,763 Krogh Feb. 11, 1941 2,237,148 Kaptuller Apr. 1, 1941 2,280,655 Madsen Apr. 21, 1942 

